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: O C c) C C H H H + H H + H d) H H H H H H H H H H H H H H H H H e) H H H H H H H H H H H H 3.17 a) Each of these structures makes a similar contribution to the resonance hybrid because they have similar stabilities. Because there are three important resonance structures, this anion has a large resonance stabilization. -- : b) The first structure makes the largest contribution to the resonance hybrid because it has no formal charges. The others make similar but lesser contributions. The compound has a large resonance stabilization. : N N+ N+ N + N+ H H H H H 32